The Fifth International Conference of the CIS Countries will be held at the Institute of Silicate Chemistry of RAS, St. Petersburg (ISChem RAS). Sections of the conference: Theoretical aspects of sol-gel process. Sol-gel synthesis and research of nanoparticles. Sol-gel films, coatings and membranes. Hybrid inorganic and organic-inorganic sol-gel materials. Xerogels, glass and bulk ceramic materials synthesized by sol-gel method. Sol-gel materials for environmental protection, agriculture and biomedicine applications. Applications of sol-gel science and technology.